Simplex Trading Portfolio holdings
Simplex Trading, founded in 2004 and headquartered in Chicago, Illinois, is a technology-driven proprietary trading firm specializing in market-making and liquidity provision, primarily in U.S. equity options and futures options. Leveraging advanced proprietary software and data-driven analysis, the firm optimizes trading strategies and develops innovative solutions to capitalize on financial market opportunities, maintaining a competitive edge through automation and a collaborative team of technologists and traders. With a workforce exceeding 300 and led by CEO Erik Swanson since 2014, Simplex operates with a low-ego, high-intelligence culture, focusing on minimal bureaucracy and rapid execution, while also making strategic venture capital investments in fintech startups. Recognized as a top workplace in Chicago by Built In’s 2025 awards, Simplex continues to evolve, blending cutting-edge technology with a commitment to market efficiency and growth.
Top Buys
| 1 |
Amazon
AMZN
|
$107M |
| 2 |
SPDR Gold Trust
GLD
|
$65.8M |
| 3 |
NVIDIA
NVDA
|
$61.6M |
| 4 |
Apple
AAPL
|
$51.2M |
| 5 |
iShares 20+ Year Treasury Bond ETF
TLT
|
$50.9M |
Top Sells
| 1 |
Qualcomm
QCOM
|
$25.2M |
| 2 |
Netflix
NFLX
|
$24.1M |
| 3 |
Walt Disney
DIS
|
$22.2M |
| 4 |
Snowflake
SNOW
|
$17.4M |
| 5 |
Advanced Micro Devices
AMD
|
$17.2M |
Sector Composition
| 1 | Technology | 20.43% |
| 2 | Consumer Discretionary | 15% |
| 3 | Healthcare | 10.19% |
| 4 | Financials | 8.16% |
| 5 | Communication Services | 6.81% |
| Name | Market Value | Portfolio Weight | Shares or Principal |
Shares Change % | Capital Flow | |
|---|---|---|---|---|---|---|
26
AbbVie
ABBV
$374B
| $18.5M | 0.01% |
124,252
+69,611
| +127% | +$10.4M |
|
27
Alphabet (Google) Class A
GOOGL
$2.79T
| $18.5M | 0.01% |
140,996
+88,276
| +167% | +$11.6M |
|
28
Nike
NKE
$110B
| $18M | 0.01% |
188,394
+90,336
| +92% | +$8.64M |
|
29
Sea Limited
SE
$107B
| $17.7M | 0.01% |
403,313
+381,230
| +1,726% | +$16.8M |
|
30
NIO
NIO
$14.2B
| $17.7M | 0.01% |
1,956,782
+1,277,047
| +188% | +$11.5M |
|
31
Rivian
RIVN
$17.5B
| $17.5M | 0.01% |
719,240
+568,355
| +377% | +$13.8M |
|
|
SPLK
32
DELISTED
Splunk Inc
SPLK
| $17.4M | 0.01% |
118,662
+67,124
| +130% | +$9.82M |
|
33
Energy Transfer Partners
ET
$60.3B
| $15.9M | 0.01% |
1,130,414
+859,967
| +318% | +$12.1M |
|
34
Intel
INTC
$105B
| $15.7M | 0.01% |
440,991
-111,194
| -20% | -$3.95M |
|
|
B
35
Barrick Mining Corporation
B
$46.3B
| $15.5M | 0.01% |
1,066,642
+93,205
| +10% | +$1.36M |
|
36
Home Depot
HD
$406B
| $15.2M | 0.01% |
+50,242
| New | +$15.2M |
|
37
iShares China Large-Cap ETF
FXI
$6.65B
| $15.2M | 0.01% |
571,797
-369,288
| -39% | -$9.8M |
|
38
Roblox
RBLX
$92.5B
| $14.2M | 0.01% |
488,918
+356,458
| +269% | +$10.3M |
|
39
Consumer Discretionary Select Sector SPDR Fund
XLY
$23.2B
| $13.9M | 0.01% |
86,130
-8,534
| -9% | -$1.37M |
|
40
Consumers Staples Select Sector SPDR Fund
XLP
$15.8B
| $13.5M | 0.01% |
196,156
-115,050
| -37% | -$7.92M |
|
41
Warner Bros
WBD
$29.5B
| $13.5M | 0.01% |
1,238,898
+445,574
| +56% | +$4.84M |
|
|
VMW
42
DELISTED
VMware, Inc
VMW
| $13.4M | 0.01% |
80,244
+36,166
| +82% | +$6.02M |
|
43
SolarEdge
SEDG
$1.97B
| $13M | 0.01% |
100,068
+91,687
| +1,094% | +$11.9M |
|
44
Moderna
MRNA
$9.36B
| $12.5M | 0.01% |
120,949
+106,352
| +729% | +$11M |
|
45
Strategy Inc Common Stock Class A
MSTR
$93.6B
| $11.6M | 0.01% |
35,451
+10,927
| +45% | +$3.59M |
|
46
Check Point Software Technologies
CHKP
$20.6B
| $11.6M | 0.01% |
86,753
+15,833
| +22% | +$2.11M |
|
47
ProShares Trust UltraShort Lehman 20+ Year Treasury
TBT
$304M
| $11.5M | 0.01% |
294,045
+276,401
| +1,567% | +$10.8M |
|
48
Ford
F
$46.2B
| $11.3M | 0.01% |
907,789
-337,757
| -27% | -$4.19M |
|
49
Waste Management
WM
$90.4B
| $11.2M | 0.01% |
73,591
+63,627
| +639% | +$9.7M |
|
50
American Tower
AMT
$91.9B
| $11.2M | 0.01% |
+67,954
| New | +$11.2M |
|